The mixture of cement and sand is in the ratio 1:3 how much cement is needed for 24 buckets full and 84 spades full

Answer 1

of sand

24 buckets of cement and 84 spades of sand would require 8 buckets of cement.

Answer 2

1/4 = cement
3/4 = sand
24 buckets ---> 6 buckets of cement and 18 of sand
84 spades ---> 21 spades of cement and 63 of sand

Answer 3

By the way that is Damon, not the bot, with the second answer.